Wooden lining for brake and transmission bands



Feb. i7, 192." 1,527,142

D. E. KORTZ ET AL.

WOODEN LINING FOR BRAKE AND TRANSMISSION BANDS Filed March 20. 1925 3mm MQ/MMM Patented Feb. 17, 1925.

UNITED DAVID E. KORTZ AND CLAUDE S. MILNE, OF DENVER, COLORADO.

WOODEN LN'ING FOR' BRAKE AND TRANSMISSION BANDS.

Application filed March 20, 1923.

To all whom t may concern:

Be it known that we, DAVID Konrz and CLAUDE S. MILNE, citizens of the United States, and residents of the city and county of Denver, State of Colorado, have invented certain new and useful Improvements in Wooden Linings for Brake and Transmission Bands; and we do declare the following to be a full, clear, and exact description of the invention, such as will enable others Skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of this speciiication.

The object of this invention is to provide a highly serviceable lining for brakes and transmission bands which will not grab and chatter nor iill Vthe oil with fibers as do fabric linings, and which will gradually and firmly engage the brake or transmission drum.

Briey, the invention comprises a lining in the form of a wooden band or strip adapted to be secured to a brake or transmission band or the like, the lining preferably being of soft wood having a long fiber and capable of yielding somewhat and of absorbing a relatively large amount of lubricant. Such a wood is Cottonwood; it is valuable for the present purpose and will not disintegrate readily nor till the oil with fibers. Preferably the band or lining of wood will be provided with grooves which may serve to collect and conduct oil to various parts of the lining, and certain of the grooves will be filled with a firm wicking, such as asbestos cord, which also will retain lubricant. Preferably the lining will be well saturated with lubricant before installation, and since the same is to be used ordinarily in an oil-containing casing wherein oil will be continuously conducted to or splashed upon the lining' or a drum to be engaged thereby, proper lubrication will always be insured.

ln the accompanying drawings wherein certain embodiments of the invention are disclosed by way of illustration,

Fig. 1 is a cross section through a transmission casing showing a lining of the present invention in operative position upon a transmission drum;

Fig. 2 is a side elevation of the lining secured to the transmission band;

Fig. 3 is a face view of one form of lining;

Serial No. 626,318.

Fig. 4 is a cross section therethrough on line t-lcf Fig. 3;

Fig. 5 1s a face view of a modified form of lining;

Fig. 6 is alongitudinal section there-` through taken on line 6 6 of Fig. 5;

Fig. 7 is a face view of a further modiication;

Fig. 8 is a section therethrough taken on line 8-'8 of Fig. 7;

Fig. 9 is a face view of a still further modification Fig. 10 is a longitudinal section there-i through showing the manner of lacing the asbestos cord or wicking and the arrangement of the grooves.

Fig. l of the drawings discloses a casing 10 having a cover 11 and enclosing a transmission of one form for automobiles which includes a transmission 12 and a iiy wheel 14 or the like which splashes up oil from the bottom of the casing onto said drum. A resilient transmission band 15 of wel] known type carries a wooden lining 16 of the present invention which engages the drum 12, the lining 16 being secured to the band 15 as by rivets 17 in the usual manner and said band 15 being actuable for engagement of the drum as by means of a rod or shaft 18.

In the form of lining` 16 of the present invention a preferably soft wood having a long fiber is employed, the grain extending the length of the lining. Cotton-wood is very serviceable for this purpose, since it is sufficiently tough for good service and porous enough to absorb considerable amounts of oil to insure proper lubrication. Being oflong liber, the lining of this wood does not break down readily and the oil is not filled with fibrous material.

Figs. 3 and 4L disclose such a lining 16 which is provided on the face which engages the drum, with longitudinally extending grooves 20 for conducting oil. Preferably these grooves 2O are provided with a wicking such as asbestos cord 22 or the like which shall be sufficiently iirm to prevent ready disintegration and shall serve to absorb and conduct oil for thorough lubrication of the lining. The wicking may be tied through the band as at 24 to retain the same in the grooves.

Preferred forms of lining 16 are shown in Figs. 5 and 9, wherein the wicks in the form of cords 30 are threaded or laced back to edge of the lining7 while the faceofthe t lining which is secured next to the spring t'ansniission band 15 is provided with shorty longitudinally extending staggered grooves 26 located a short distance in troni the edges oiL the lining. rlhe wick 30 is laced back and 1to1-th from one tace ot the lining to the other and from one edgeot the lining to the other so as to lie in the grooves 25 and Q6, the bottoms ot the grooves 25 coininunieating with holes 26 which pass through the lining and communicate with therends ot the `grooves L6, the wick passing through said holes 28. In this manner oil is ted to the wick from the edges of the lining through the ends of the grooves 25.

In the torni of Figs. 9 and 10, the lining 16 is shown as being provided with a pair of grooves 32 whichextend the full'length of the drum-engaging tace ot the band, and with an occasional transverse groove 125 like grooves 25 of Fig. 5. The wicks 30 extend longitudinally ot the lining 16 but are laced back and forth lroinone'tace of the lining to the other so as to have port-ions thereof lying in the grooves 32 and other portions lying upon the opposite tace ot the lining and against the resilient band 'when mounted thereon. Preferably the portions of wick lying in one groove 32 are staggered with relation to portions lying in the otliei1 groove as seen in Fig. 9. rlhe transverse grooves 125 serve to, vil'eed oil inward from the edges ol the lining to the grooves l32 and wicks 30. TWith this construction t-he conibination ot grooves and wicks keeps the liningwell lubricated at all timesin view of the fact that oil is always being splashed or ted to the drum and the edges ot the lining 16 and band 15. y

The form ot Figs. 7 and Sshows the lining 16 as being provided with the transverse grooves only, short sections ot wick 40 being secured therein and having their ends passed through the lining within tlie edges and knotted at 42 on the'other side, the knots being countersunk in recesses 4A. Thus the wicks are well lubricated bymeans vof the grooves 25. l

The cotton-wood lining7 or lining ot'other Suitable wood, is shaped .in any desired or known manner, so that it will itself have more or less resilience for the purpose 0l automatically withdrawing the lining from engagement with the drurn when released. Be-oreinstallation the lining 16 will be well saturated with lubricant so as to insure proper lubrication and proper operation from the beginning.

Vile claim:

`l. A lining for` brake andtransniission bands having grooves on the operative tace thereof, and wicking in the torni ot a cord laced back and forth through said lining and lying in certain ot' said grooves 'for absorbing oil.

l 2. A lining for brake andtransmission bands havingy oil receiving grooves `entending both" transversely and longitudinally ot' the lining on the operative tace thereo't, and a wicking in the forin of la cord lacedback and forth through said liningand `lying in certain of said grooves for absorbing` oil.

3. A lining `for brake and transmission bands toi-ined of a long-liber soft wood, said lining having grooves entending both'transversely and longitudinally ot' the operative face oit' the band, andA a wick lthreaded through'said lining 'from ytace to` tace and lying in certain ot' said grooves for absorbingoil.

4t. The combination with a transmission band, of a non-metallic `lining mounted on the inner tace of the band having spaced openings arranged in a longitudinal row,

and a wick overlying the outer face ot the lining having portions extending through said openings and partially overlying the inner tace of the lining.

5. rlhe combination wit-l1 a transmission druniand a band encircling the drum, ot a non-metallic lining interposed between the band and the drinn and `movable with the bandy'and a tape-like 0il-abslorbi`ng`wickinterposed between the band and lining, spaced portions of said wicl`plassing through the lining and being torined into loops adapted to spread the oil over the i'ace olf the drum. o

6. In a transmission mechanism, the conibination with the drum and a flexible metal band encircling the drum, ot' a non-metallic lining interposed between the drinn and the band, said lining having spaced openings facing the drum, andan elongated" wick adaptedto be saturated `with lubricating oil overlyin'ghthe outer face ot the lining and havinglooped portions extending through said openings adapted to distribute the oil over the periphery ot the drum whenver said band is clamped to the drum.

In testimony whereof we, atlix our signatures.

DAVID n. nonrz.r CLAUDE s. MILNE.

iis 

